Evaluation of Green Infrastructure Designs Using the Automated Geospatial Watershed Assessment Tool

D. Phillip Guertin, Yoganand Korgaonkar, I. Shea Burns, Jane Barlow, Carl Unkrich, David C. Goodrich, William Kepner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In arid and semi-arid regions, green infrastructure (GI) designs can address several issues facing urban environments, including augmenting water supply, mitigating flooding, decreasing pollutant loads, and promoting greenness in the built environment. An optimum design captures stormwater, addressing flooding and water quality issues, in a way that increases water availability to support natural vegetation communities and landscaping in the built environment. A module was developed for the Automated Geospatial Watershed Assessment (AGWA) tool which supports the design and placement of a suite of GI practices, singularly or in combination, in order to simulate urban hydrology with and without GI features at the household and neighborhood scale.The GI tool takes advantage of the advanced, physically-based infiltration algorithms and geometric flexibility of the Kinematic Runoff and Erosion (KINEROS2) watershed model. The resulting software provides an up-to-date GIS-based GI assessment framework that automatically derives model parameters from widely available spatial data. It is also capable of manipulating GI features within a graphical interface to conveniently view and compare simulation results with and without GI features at a lot, neighborhood or small catchment scale. The new tool was used to assess a variety of GI designs across a subdivision in Sierra Vista, Arizona for the design objectives: maximize stormwater capture, maximize water augmentation, and maximize ecosystem services.

Original languageEnglish (US)
Title of host publicationWatershed Management 2015
Subtitle of host publicationPower of the Watershed - Proceedings of the Watershed Management Symposium 2015
EditorsGlenn E. Moglen
PublisherAmerican Society of Civil Engineers (ASCE)
Pages229-239
Number of pages11
ISBN (Electronic)9780784479322
DOIs
StatePublished - 2015
Event11th Watershed Management Symposium 2015: Power of the Watershed - Reston, United States
Duration: Aug 5 2015Aug 7 2015

Publication series

NameProceedings of the Watershed Management Symposium
Volume2015-January

Other

Other11th Watershed Management Symposium 2015: Power of the Watershed
Country/TerritoryUnited States
CityReston
Period8/5/158/7/15

ASJC Scopus subject areas

  • Water Science and Technology

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